Skip to main content

Configuration flags for libraries and applications.

Project description

oscar.flag provides extensible, namespaced flags which can be parsed from environment variables, command-line arguments and config files.

Flags are declared where they are used in an application or library, and they are accessed through a namespace matching their fully qualified module path.

Documentation lives at Read the Docs, the code on GitHub.

Example

Application entry-point:

import sys
from oscar import flag

import other_module


FLAGS = flag.namespace(__name__)
FLAGS.some_int = flag.Int('some integer value', default=1)


if __name__ == '__main__':
    flag.parse_commandline(sys.argv[1:])
    flag.die_on_missing_required()

    print 'other_module.multiply_by(%d) = %d' % (
        FLAGS.some_int,
        other_module.multiply_by(FLAGS.some_int))

other_module.py:

from oscar import flag

FLAGS = flag.namespace(__name__)
FLAGS.multiplier = flag.Int('some integer', default=flag.REQUIRED)

def multiply_by(i):
    return i * FLAGS.multiplier

shell:

$ python example.py
Missing required flags:
      [other_module.]multiplier
Usage of example.py:
__main__:
      [__main__.]some_int=None: some integer value

other_module:
      [other_module.]multiplier=<required>: some integer

# Note the namespaced reference --other_module.multiplier.
$ python example.py --other_module.multiplier=2 --some_int=3
other_module.multiply_by(3) = 6

License

Copyright 2015 Mulberry Health Inc.

Licensed under the Apache License, Version 2.0.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for oscar.flag, version 0.1.2
Filename, size File type Python version Upload date Hashes
Filename, size oscar.flag-0.1.2.tar.gz (19.5 kB) File type Source Python version None Upload date Hashes View hashes

Supported by

Elastic Elastic Search Pingdom Pingdom Monitoring Google Google BigQuery Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page